Multifunctional adjustable seat headrest and seat

Abstract

The multifunctional adjusting seat headrest comprises a headrest body, an L-shaped supporting arm and a rotating seat, the supporting arm comprises a sliding section and a lifting section, the two ends of the rotating seat are fixedly connected with the end of the headrest body and the end of the sliding section respectively, and the headrest body is provided with a first elastic automatic adjusting reset mechanism; the first elastic automatic adjusting reset mechanism comprises a first elastic reset element, one end of the first elastic reset element is fixedly connected with the rotating seat, the other end of the first elastic reset element is fixedly connected with the headrest body, and the first elastic reset element is stretched when the headrest body is subjected to acting force of the head of the human body and is reset when the headrest body relieves the acting force of the head of the human body. The first elastic reset element automatically resets, and self-adaptive adjustment of the upper position and the lower position of the headrest body relative to the rotating seat is achieved through stretching and resetting. According to the self-adaptive headrest, self-adaptive adjustment can be achieved, and automatic adjustment of any one or more of the up-down rotating state, the front-back rotating state and the circumferential rotating state can be achieved.

Description

Technical Field

[0001] The invention relates to a multifunctional adjustable seat headrest and a seat, belonging to the technical field of seat components and seats. Background Art

[0002] As furniture closely related to human life, chairs bring convenience to human work and meet the needs of daily desk work. The lumbar support of existing chairs is either fixed and cannot be adjusted, or requires manual adjustment of its angle and up and down position to achieve a position suitable for the back posture. However, during the adjustment process of the existing lumbar support, the user's back is away from the lumbar support (the reason is that the components that drive the lumbar support to rotate mostly use torsion springs that cannot support the weight of the back). Therefore, the user can only rely on repeated adjustments and repeated leaning. This method is extremely inconvenient and often cannot be adjusted to the most comfortable position. After adjustment, the lumbar support posture is fixed and will not change with the user's sitting posture, resulting in discomfort when leaning for a long time. In addition, the existing lumbar support adjustment often changes the posture by rotating the hinge angle of the lumbar support and the seat cushion. When the adjustment range is large, it seriously affects the user's experience.

[0003] Existing chairs are provided with a headrest at the upper end of the backrest for the head and neck to lean on, so as to improve the support for the head and provide a better riding experience. The headrests are installed in two ways: fixed and adjustable, but are generally assembled before leaving the factory. The fixed headrests cannot be adjusted according to the specific characteristics of the user, resulting in a poor user experience. The adjustable headrests are often connected by plastic-matched clips, and the connection relationship is unstable and the gap is large, which makes it easy to shake. In addition, such a structure is very inconvenient to pack and transport and wastes transportation space. In addition, the connection between the headrest and the chair back is easily squeezed or collided, causing the connection to deform, resulting in a high defective rate.

[0004] The present invention aims to solve this technical problem by changing the adjustment structure of the headrest and the assembly connection method, so that the headrest can be adaptively adjusted and can realize automatic adjustment in any one or more of the up and down, front and back, and circumferential rotation states, and can realize automatic reset after automatic adjustment in the up and down, front and back directions. Summary of the Invention

[0005] One of the purposes of the present invention is to solve the shortcomings of the seat headrest in the prior art and provide a functionally adjustable seat headrest. By changing the adjustment structure of the headrest and changing the assembly and connection method, the headrest can be adaptively adjusted and can achieve automatic adjustment in any one or more of the up and down, front and back, and circumferential rotation states, and can automatically reset after automatic adjustment in the up and down, front and back directions.

[0006] A second object of the present invention is to provide a seat equipped with the seat headrest of the present invention, which greatly improves the convenience and comfort of seat use.

[0007] The technical solution adopted by the present invention to solve its technical problem is:

[0008] A multifunctional adjustable seat headrest comprises a headrest body, an L-shaped support arm, and a rotating seat. The support arm comprises a sliding section and a lifting section. The two ends of the rotating seat are respectively fixedly connected to the headrest body and the end of the sliding section. The headrest body is provided with a first elastic automatic adjustment and reset mechanism. The first elastic automatic adjustment and reset mechanism comprises a first elastic reset element. One end of the first elastic reset element is fixedly connected to the rotating seat, and the other end is fixedly connected to the headrest body. When the headrest body is subjected to a force applied by the human head, the first elastic reset element is stretched. When the headrest body is relieved of the force applied by the human head, the first elastic reset element automatically resets. Through stretching and reset, the upper and lower positions of the headrest body relative to the rotating seat are adaptively adjusted. When the human head rests against the headrest body, the resistance of the first elastic reset element (elastic band) moves downward. The elastic band lengthens as the distance between the headrest body and the rotating seat moves downward. When the human head leaves the headrest body, the headrest body and the rotating seat are automatically reset under the action of the elastic band.

[0009] Preferably, the first elastic reset element is an elastic band, and fixing columns are respectively provided at both ends of the elastic band. The headrest body and the rotating seat are respectively provided with fixing parts of the elastic band, which are fixed by the cooperation of the fixing parts and the fixing columns.

[0010] Preferably, the multifunctional adjustable seat headrest is also provided with a second elastic sliding automatic adjustment and reset mechanism, which is arranged on the sliding section of the support arm and includes a support arm fixing assembly, a support arm sliding assembly and a second elastic reset element. One end of the second elastic reset element is fixed to the support arm fixing assembly, and the other end is fixed to the support arm sliding assembly. The support arm fixing assembly and the support arm sliding assembly can slide relative to each other under the action of the headrest body. When the headrest body is subjected to the action of the human head, the second elastic reset element is stretched. When the headrest body is relieved of the force of the human head, the second elastic reset element automatically resets. Through stretching and resetting, adaptive adjustment of the front and rear positions of the headrest body is achieved.

[0011] Preferably, the second elastic sliding automatic adjustment reset mechanism is further provided with a control switch, which controls the relative sliding position of the support arm sliding assembly relative to the support arm fixed assembly, and the second elastic reset element is an elastic band.

[0012] Preferably, the control switch is a manual control switch, including a gear pin, a gear spring, and a gear sleeve. The support arm fixing assembly and the support arm sliding assembly are provided with a gear slot adapted to the gear pin, which can manually realize the adaptive adjustment distance of the front and rear position of the headrest body.

[0013] Preferably, the control switch further includes a headrest handle, which is fixed to the gear sleeve.

[0014] In this embodiment, when the sliding function is locked, the pillow body is fixed front to back. When the sliding function is unlocked, the elastic band's resistance moves backward when the head rests against the headrest body, stretching the band and increasing the distance from the support arm mounting assembly. When the head lifts off the headrest body, the elastic band automatically returns to its original position due to the restoring force. Once the head has slid back against the headrest body to find a comfortable position, the headrest handle can be rotated to lock the position.

[0015] Preferably, the rotating seat and the end of the support arm sliding assembly are rotatably connected via a rotating shaft. The circumferential angle of the headrest body can be adjusted according to the needs of the head to achieve a comfortable state.

[0016] Preferably, the support arm is also provided with a headrest lifting mechanism.

[0017] Preferably, the headrest lifting mechanism includes a lifting sliding fixing member, a lifting gear hook, a lifting gear spring and a lifting sliding fixing member.

[0018] A seat comprises a seat body and a headrest structure, and adopts the multifunctional adjustable seat headrest according to any one of claims 1 to 9.

[0019] The beneficial effects of the present invention are: by changing the adjustment structure of the headrest and the assembly connection method, the headrest can be adaptively adjusted and can achieve automatic adjustment in any one or more of the vertical, front-back, and circumferential rotation states. After the headrest is automatically adjusted in the vertical and front-back directions, it can also automatically reset. This greatly improves the convenience and comfort of seat use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0021] Figure 1 It is a structural schematic diagram of the present invention;

[0022] Figure 2 It is a structural schematic diagram of the present invention;

[0023] Figure 3 It is a structural schematic diagram of the present invention;

[0024] Figure 4 It is a structural schematic diagram of the present invention;

[0025] Figure 5 It is a structural schematic diagram of the present invention;

[0026] Figure 6 It is a structural schematic diagram of the present invention;

[0027] Figure 7 It is a structural schematic diagram of the present invention.

[0028] The marks in the accompanying drawings are described as follows: 1. Headrest body, 2. Rotating seat, 3. Rotating seat disassembled parts, 4. Elastic band, 5. Fixed column, 6. Sliding section, 7. Lifting section, 8. Support arm sliding assembly, 9. Support arm fixed assembly cover, 10. Sound insulation sleeve, 11. Rotating bolt, 12. Decorative cover, 13. Nut, 14. Sliding sleeve, 15. Sliding gear spring, 16. Gear pin, 17. Headrest lifting bracket disassembled parts, 18. Headrest handle, 19. Lifting and sliding fixed disassembled parts, 20. Gear hook, 21. Lifting gear spring, 22. Lifting and sliding fixing parts, 23. Self-tapping screws. DETAILED DESCRIPTION

[0029] The preferred embodiments of the present invention are described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more precise definition of the protection scope of the present invention.

[0030] Example: Figure 1-7 As shown, a multifunctional adjustable seat headrest includes a headrest body 1, an L-shaped support arm, and a rotating base 2. The support arm includes a sliding section 6 and a lifting section 7. The rotating base 2 has two ends fixedly connected to the headrest body 1 and the end of the sliding section 6, respectively. The headrest body 1 is provided with a first elastic automatic adjustment and reset mechanism. The first elastic automatic adjustment and reset mechanism includes a first elastic reset element, one end of which is fixedly connected to the rotating base 2 and the other end is fixedly connected to the headrest body 1. When the headrest body 1 is subjected to a force applied by the human head, the first elastic reset element is stretched. When the headrest body 1 is relieved of the force applied by the human head, the first elastic reset element automatically resets. Through stretching and reset, the upper and lower positions of the headrest body 1 relative to the rotating base 2 are adaptively adjusted. When the human head rests on the headrest body 1, the resistance of the first elastic reset element (elastic band 4) moves downward. The elastic band 4 lengthens as the headrest body 1 and the rotating base 2 move downward. When the human head leaves the headrest body 1, the headrest body 1 and the rotating base 2 are automatically reset under the action of the elastic band 4.

[0031] Specifically, the first elastic reset element is an elastic band 4, and fixing columns 5 are respectively provided at both ends of the elastic band 4. The headrest body 1 and the rotating seat 2 are respectively provided with fixing parts of the elastic band 4, which are fixed by the cooperation of the fixing parts and the fixing columns 5. Specifically, the rotating seat 2 is provided with a rotating seat disassembly 3, on which a fixing part is provided for fixing the elastic band 4.

[0032] Specifically, the multifunctional adjustable seat headrest is also provided with a second elastic sliding automatic adjustment and reset mechanism, which is arranged on the sliding section 6 of the support arm, including a support arm fixing assembly (illustrated in the figure, not numbered, where 9 is a support arm fixing assembly cover), a support arm sliding assembly 8 and a second elastic reset element. One end of the second elastic reset element is fixed to the support arm fixing assembly, and the other end is fixed to the support arm sliding assembly 8. The support arm fixing assembly and the support arm sliding assembly 8 can slide relative to each other under the action of the headrest body 1. When the headrest body 1 is subjected to the action of the human head, the second elastic reset element is stretched. When the headrest body 1 is relieved of the force of the human head, the second elastic reset element automatically resets. Through stretching and resetting, adaptive adjustment of the front and rear positions of the headrest body 1 is achieved.

[0033] Specifically, the second elastic sliding automatic adjustment and reset mechanism is further provided with a control switch, which controls the relative sliding position of the support arm sliding assembly 8 relative to the support arm fixed assembly, and the second elastic reset element is an elastic band 4.

[0034] Specifically, the control switch is a manual control switch, including a gear pin 16, a sliding gear spring 15, and a gear sleeve 14. The support arm fixing assembly and the support arm sliding assembly 8 are provided with a gear slot adapted to the gear pin 16, which can manually realize the adaptive adjustment distance of the front and rear positions of the headrest body 1.

[0035] Specifically, the control switch further includes a headrest handle 18 , which is fixed to the gear sleeve 14 .

[0036] In the present invention, when the sliding function is locked, the pillow body 1 is fixed front to back. When the sliding function is unlocked, when the head rests against the headrest body 1, the elastic band's resistance moves backward, stretching the elastic band 4 and increasing the distance from the support arm fixing assembly. When the head lifts off the headrest body 1, the elastic band 4 automatically returns to its original position due to the restoring force. Once the head has slid back against the headrest body 1 to find a comfortable position, the headrest handle 18 can be rotated to lock the position.

[0037] Specifically, the rotating base 2 is rotatably connected to the end of the support arm sliding assembly 8 via a rotating shaft. The circumferential angle of the headrest body can be adjusted to achieve a comfortable fit based on the head's needs. As shown in the figure, the rotating shaft structure includes a soundproofing sleeve 10, a rotating bolt 11, a decorative cover 12, and a nut 13. The assembly method is conventional for achieving a rotating connection, as known to those skilled in the art.

[0038] Specifically, the support arm is also provided with a headrest lifting mechanism.

[0039] Specifically, the headrest lifting mechanism includes a headrest lifting bracket disassembled part 17, a lifting sliding fixed disassembled part 19, a gear hook 20, a lifting gear spring 21, a lifting sliding fixed part 22, and a self-tapping screw 23. The headrest lifting mechanism is also disclosed in the prior art, and the assembly method is a conventional method used by ordinary personnel in this field to achieve a rotational connection.

[0040] The present invention also discloses a seat, comprising a seat body and a headrest structure, which adopts any one of the multifunctional adjustable seat headrests described above in the present invention.

[0041] The beneficial effects of the present invention are: by changing the adjustment structure of the headrest and the assembly connection method, the headrest can be adaptively adjusted and can achieve automatic adjustment in any one or more of the vertical, front-back, and circumferential rotation states. After the headrest is automatically adjusted in the vertical and front-back directions, it can also automatically reset. This greatly improves the convenience and comfort of seat use.

[0042] The embodiment described above is only a preferred solution of the present invention and does not limit the present invention in any form. Other variations and modifications are possible without exceeding the technical solution described in the claims.

Claims

1. A multifunctional adjustable seat headrest, comprising a headrest body, an L-shaped support arm and a rotating seat, wherein the support arm comprises a sliding section and a lifting section, and the two ends of the rotating seat are respectively fixedly connected to the headrest body and the end of the sliding section, characterized in that: The headrest body is provided with a first elastic automatic adjustment and reset mechanism, which includes a first elastic reset element. One end of the first elastic reset element is fixedly connected to the rotating seat, and the other end is fixedly connected to the headrest body. When the headrest body is subjected to the force of the human head, the first elastic reset element is stretched. When the headrest body is relieved of the force of the human head, the first elastic reset element is automatically reset. Through stretching and resetting, adaptive adjustment of the upper and lower positions of the headrest body relative to the rotating seat is achieved.

2. The multifunctional adjustable seat headrest according to claim 1, characterized in that: The first elastic reset element is an elastic band, and fixing columns are respectively provided at both ends of the elastic band. The headrest body and the rotating seat are respectively provided with fixing parts of the elastic band, which are fixed by the cooperation of the fixing parts and the fixing columns.

3. The multifunctional adjustable seat headrest according to claim 1 or 2, characterized in that: The multifunctional adjustable seat headrest is also provided with a second elastic sliding automatic adjustment and reset mechanism, which is arranged in the sliding section of the support arm, and includes a support arm fixing assembly, a support arm sliding assembly and a second elastic reset element. One end of the second elastic reset element is fixed to the support arm fixing assembly, and the other end is fixed to the support arm sliding assembly. The support arm fixing assembly and the support arm sliding assembly can slide relative to each other under the action of the headrest body. When the headrest body is subjected to the action of the human head, the second elastic reset element is stretched. When the headrest body is relieved of the force of the human head, the second elastic reset element automatically resets. Through stretching and resetting, adaptive adjustment of the front and rear positions of the headrest body is achieved.

4. The multifunctional adjustable seat headrest according to claim 3, characterized in that: The second elastic sliding automatic adjustment and reset mechanism is also provided with a control switch, which controls the relative sliding position of the support arm sliding assembly relative to the support arm fixed assembly. The second elastic reset element is an elastic belt.

5. The multifunctional adjustable seat headrest according to claim 4, characterized in that: The control switch is a manual control switch, including a gear pin, a gear spring, and a gear sleeve. The support arm fixing assembly and the support arm sliding assembly are provided with a gear slot adapted to the gear pin, which can manually realize the adaptive adjustment distance of the front and rear position of the headrest body.

6. The multifunctional adjustable seat headrest according to claim 5, characterized in that: The control switch also includes a headrest handle, which is fixed to the gear sleeve.

7. The multifunctional adjustable seat headrest according to claim 3, characterized in that: The rotating seat and the end of the support arm sliding assembly are rotationally connected via a rotating shaft.

8. The multifunctional adjustable seat headrest according to claim 1 or 2, characterized in that: The support arm is also provided with a headrest lifting mechanism.

9. The multifunctional adjustable seat headrest according to claim 8, characterized in that: The headrest lifting mechanism includes a lifting sliding fixing member, a lifting gear hook, a lifting gear spring and a lifting sliding fixing member.

10. A seat comprising a seat body and a headrest structure, characterized in that: The multifunctional adjustable seat headrest according to any one of claims 1 to 9 is adopted.

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